Yes and currently experiencing them. I have a hard time staying focused, zero urge whatsoever to eat (been three days since a full meal) almost to a level where you could put a $100 steak in front of me right now and I would not want to eat it. This usually lets up after day three. I also have a ridiculously difficult time falling asleep and am guaranteed to wake up early when I do. THEN THE DREAMS COME BACK! Dude, when you're a regular user and quit for a little while, the dreams can honestly be the worst side effect- especially if you're stressed and your stress manifests itself into nightmares.
Shall we compare these side effects to the ones I experienced when I quit prescription antidepressants cold turkey? Can't. Because I don't remember it all... What I do remember is really embarrassing and scary. We'll boil it down to craziness ensued.
I might be starving and sleep deprived right now, but I'm not losing my mind... Anecdotal, but that's what I'm currently going through. I'll be a pothead forever before I ever take another antidepressant, though.